作者: T. Shaw , M. Winston , C. J. Rupp , I. Klapper , P. Stoodley
DOI: 10.1103/PHYSREVLETT.93.098102
关键词: Relaxation (NMR) 、 Chemistry 、 Phenotypic response 、 Elasticity (economics) 、 Polymer 、 Biophysics 、 Biofilm 、 Material properties 、 Stress (mechanics)
摘要: Biofilms, sticky conglomerations of microorganisms and extracellular polymers, are among the Earth's most common life forms. One component for their survival is an ability to withstand external mechanical stress. Measurements indicate that biofilm elastic relaxation times approximately same (about 18 min) over a wide sample biofilms though other material properties vary significantly. A possible significance this time scale it shortest period which can mount phenotypic response transient